Creator Chelsea Beyl stated an intent to enrich Wonderland by drawing from wider cultural backgrounds, resulting in the Hearts family reflecting Cuban cuisine and culture with Spanish dialogue and palace design elements, while Hattie Hatter receives Japanese descent. Voice casting includes Abigail Estrella as Princess Rosa Corazón and CJ Uy as Hattie.

Additional changes layer gender flips onto characters and introduce a Hanukkah episode alongside the female knight Kyra. These elements gain added weight due to the preschool target audience, where episodes center body positivity and dietary inclusion as core messages. "Party Like Kiki!" emphasizes that all shapes and sizes have advantages, and "Peanut Butter Change-Up" focuses on finding allergy-safe alternatives so friends can share snacks. The thematic choices shift the series from pure fantasy adventure toward explicit celebration of diversity and inclusion, making such messaging foundational rather than incidental.